Submarine toy



A. L. FIERLEIN.

SUBMARINE TOY.

APPLICATION FILED ocT.2a, |920.

Patented Jan. 3, 1922.

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Application filed October 28, 1920. VSerial No. 1120,271.

To all whom t may concern Be it known that I, ALBERT L. FIERLEIN, a citizen of the United States, residing at the city of Batavia, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Submarine Toys, of which the following is a specification.

My invention relates to toys which are intended to be used in water and which may be caused to perform various evolutions of interest in movement in such a medium. The particular object thereof is to provide a device in the form of a submarine vessel which is adapted by introduction of water and by removable weights to perform the movements of diving and re-appearance.

The principles of my invention are illustrated in the drawings in which Fig. l shows a longitudinal vertical section of my submarine toy. Fig. 2 is a rear elevation of the same reduced in size. Fig. 3 is a similar view in section upon the line 3, 3 of Fig. 1. Figs. 4, 5 and 6 are similar views showing the same in the respective positions of submerging, resting on the bottom and iioating on the top of the water after re-appearance.

Further describing my invention with reference to the drawings, l is a hull of buoyant material such as wood or cork, shaped to represent the hull of a submarine vessel. rlhe lower part thereof is provided with a fixed weight or weighting material 2 which, as shown, may be provided for by forming a longitudinal recess in the lower portion of the hull next the keel and permanently closing the recess by means of a stationary plug 3. The upper part of the hull is eX- cavated to form a hold 4c, in the form 0f an elongated chamber. A metallic cover 5, is hermetically secured to the top of the hull so as to close the hold and has an upward extension in tubular form to represent the side walls 6 of a conning-tower. A weighted plug 7 is closely fitted in and adapted to close the said upward extension. And the upper part of the plug is given an arched top to further carry out the idea of a conning-tower. External connection between the hold and the outer air is established by means of the opening 9 which is securely closed by means of a plug 10.

When the device and the several parts thereof are in the relative positions shown in Fig. l, the body will float as shown. The weight of the plug 7 is overcome by the buoyancy of the device as a whole which is created by means of the air chamber in the hull. But when the plug 10 is removed, water will flow through the opening 9 into the hull forcing air out through the same opening, the result being that the water' Hows through to the front end of the hold and the rear portion of the structure is lifted by the comparatively larger body of air in the rear portion of the hold. A condition of instability is thus created, the device gradually settling by the head, taking the position shown in Fig. 4. The water flows into the hold until the latter is sufficiently filled to overcome the buoyancy of the device as a whole. It will then plunge to the bottom where it will rest on an even keel as shown in Fig. 5. When it is desired to cause the vessel to 11e-appear, the plug 7 is removed by means of the cord 11 attached thereto. The weight of the plug being removed from the device, its buoyancy is re-established and it rises to the surface as shown in Fig. 6. Upon emptying out the water from the hull, the plugs 7 and 10 may be replaced and the device is ready to repeat the evolution.

I have described my invention with reference to a toy in the form of a submarine boat.` It is evident however, that the principles of my invention may be applied to .structures and of other form than that shown and that such are equally within scope of the following claims.

I claim ze- 1. A submarine toy, comprising a body portion having an air chamber adapted to be filled with water provided with an upward tubular extension, and a removable overweight itted in said extension and adapted to close the same against ingress of air; said device being of greater specific gravity than water when said Vair chamber is lled with water, and of less specific gravity than water alternatively either when said chamber is filled with air or when the overweight is removed.

2. A submarine toy, comprising an elongated body portion or hull, an air chamber, means for causing water to iiow into the air chamber, an overweight, and ballast in the said hull, said ballast being so proportioned to the others of said elements that the specific gravity of the whole is less than that of water, alternatively when said air chamber is supplied with air 4or when the said overweight is removed.

8. A submarine toy, comprising an elongated body portion or hull, provided with last, an elongated air chamber having an upwardly directed opening, means for introducing water into one end of said chamber, a weighted plug 1n said upwardly directed opening, and means -for removingsaid plug when the device is. submerged.

5. A submarine toy comprising an elongated body portion or hull, an air chamber, 2 means for causing water to flow into the air chamber, and an overweight, the specific gravity of said hull structure being so proportioned to the others oi said elements that the specific gravity of the whole is less than 2 that of water, alternatively when said air chamber is supplied with air, or when said overweight is removed.

In witness whereof, I have hereto set my hand at Chicago, Illinois, this 25th day 3 of October, 1920.

ALBERT L. FIERLEIN. 

